Abstract
The free electron theory and band theory are briefly described. Fermi energy calculated using the Sommerfeld theory of metals is discussed. This work shows there is no possibility to suggest that there is one or more conduction electrons per atom and a tremendous amount of heat generated in electrical conduction can be definitely detected should there be at least one electron participate in current flow. It shows that some of the assumptions and calculated values on the Fermi energy are inconsistent with experimental values. There are probably only about 0.01% of free electrons per atom participating in conduction. It proposes improvement to the calculation of the Fermi energy making them more consistent with other values.
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